Down syndrome. It is named after John Langdon Down, the British physician who described the syndrome in 1866. Down syndrome occurs when an individual has three, rather than two, copies of the 21st chromosome. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome.
2 comments:
Love it.
They sure can be cute when they want to ;)
I love them too! They are just so sweet.
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